The CME eruption from the AR4100 sunspot was traveling at an estimated 1,900 km/s, according to data from EarthSky and SpaceweatherLive.com. The material reached Earth on the night of June 1 and triggered a G3 storm that could peak as a G4 storm on June 2. It is the culmination of Solar Cycle 25, which began in late 2019 and will remain intense through 2026. During this period, the Sun has been experiencing frequent sunspots, solar flares and CMEs, leading to more frequent geomagnetic storms.
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